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Mirrors > Home > ILE Home > Th. List > falxortru | Unicode version |
Description: A ![]() |
Ref | Expression |
---|---|
falxortru |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-xor 1355 |
. 2
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2 | falortru 1386 |
. . 3
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3 | notfal 1393 |
. . . 4
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4 | falantru 1382 |
. . . 4
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5 | 3, 4 | xchnxbir 671 |
. . 3
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6 | 2, 5 | anbi12i 456 |
. 2
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7 | anidm 394 |
. 2
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8 | 1, 6, 7 | 3bitri 205 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 |
This theorem depends on definitions: df-bi 116 df-tru 1335 df-fal 1338 df-xor 1355 |
This theorem is referenced by: (None) |
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